JP2894424B2 - Ventilation control device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ventilation control device for controlling ventilation in a ventilation path for ventilation.

[0002]

2. Description of the Related Art Indoor ventilation is performed by either forced ventilation using mechanical force or natural ventilation that does not use mechanical force. In either case, the amount of ventilation fluctuates under the influence of wind such as external wind. . Fluctuations due to the disturbance requirement of the ventilation volume are not preferable in the case of ventilation by air supply or the case of ventilation by exhaust air. Therefore, techniques for reducing the influence of external wind and the like have been developed. In particular, in a highly airtight insulated house or the like, it is important to ensure that the supply of outside air by natural ventilation is not excessive or insufficient.

For example, Japanese Unexamined Patent Publication No. Hei 2-161237 discloses a ventilation grill in which the outside air pressure is detected to determine the outside wind speed, and the opening degree of a shutter is adjusted according to a difference from a reference value. In this ventilation grill, the opening degree of the shutter is narrowed when the outside air is strong, and the opening degree of the shutter is increased when the outside air is weak, so that the adverse effect of the outside air on the ventilation is avoided.

However, this ventilation grill requires a pressure sensor for measuring the wind pressure and a means for measuring the rate of change of the wind pressure, and has the problems that the structure is complicated and the cost is high. There is also a problem that a malfunction is likely to occur due to a change in sensitivity due to deterioration over time or the like.

Japanese Patent Application Laid-Open No. Sho 59-56644 discloses a normally-closed opening / closing shutter rotatably provided at an intake port, and the opening degree of the opening / closing shutter is brought into contact with the opening / closing shutter. A ventilator provided with a movable stopper defining the following is shown. In this ventilator, the position of the stopper is changed by adjusting the position of the stopper, and the opening of the open / close shutter is changed to adjust the amount of intake air.

Although the configuration around the intake port of the ventilator is effective for forced ventilation, it is not applicable to natural ventilation since the opening area required for predetermined ventilation is not kept open by a normally closed opening / closing shutter. Can not. In other words, since the opening / closing shutter is moved using the action of the wind, the technique cannot be applied to the adjustment of the ventilation rate in the situation where there is no action of the wind.

Although this is also not for the outside wind, Japanese Utility Model Laid-Open Publication No. Hei 2-16936 discloses a ventilator in which a lid for closing the ventilation opening by the action of the outside wind is attached to the ventilation opening with a hinge. This ventilator prevents rain from entering with the outside wind from the vent, but in the case of strong outside wind, the lid closes and the outside wind does not blow out from the vent together with the rain. Is not unrelated.

[0008] However, this is a technique for closing the ventilation opening when the outside wind is strong in the first place, and there are only two states of opening and closing, and it cannot be used for adjusting ventilation through the ventilation air passage. .

[0009]

A problem to be solved by the present invention is to provide a device for controlling ventilation by a ventilation air passage, which enables ventilation at a substantially constant air volume even under the influence of wind or the like. Simplifying the structure of the device to achieve cost reduction, stabilizing the adjustment operation for ventilation, increasing the responsiveness by adding the adjustment function for ventilation, improving the adaptability to the use environment, It is to obtain a rainproof function.

[0010]

In order to achieve the above object, a first aspect of the present invention is to provide a ventilation air passage for communicating between a room and an outdoor room.
Equipment that regulates ventilation through the ventilation path
The installation is installed in the ventilation duct,
The inlet and the inlet opening end on the upstream side information for an airflow direction constituting a large oblique opening is small upper higher amount of projection
An adjustment barrel having an outlet opening end opposite the mouth opening end ;
Has a regulation plate and which is suspended to rotate in the passing wind direction at the top of the inlet opening end of the section tube so freely, means air is made to adjust cylinder from the bottom and sides of the adjusting plate Is adopted.

In order to achieve the above object, the invention according to claim 2 is provided in a part of a ventilation air passage communicating between the room and the outside.
Equipment for controlling ventilation through the ventilation duct
The entrance opening end which is attached to the ventilation air path of the upper side and which is smaller in diameter than the ventilation air path and has a larger amount of protrusion toward the upper side and which is on the upstream side in the ventilation direction , opposes this entrance opening end.
And adjusting cylinder having an outlet opening end on the side, is rotated to allow the hanging of the top in the passage wind direction of the inlet opening end of the adjustment cylinder, the rotation of the downstream resistance by the elastic force imparted and an adjustment plate
And means for allowing air to flow from the lower part and the side part of the adjusting plate to the adjusting cylinder.

[0012] The invention of claim 3 in order to achieve the object described above is difficult to rotation of the adjustment plate Niso in the hands <br/> stage Ru engaged to claim 1 or claim 2, Alternatively, a means for providing a rotation adjusting member as a variable resistor for facilitating the rotation is employed.

[0013]

In order to achieve the above object, the invention according to claim 4 is provided in a part of a ventilating air passage communicating between the room and the outside.
Equipment for controlling ventilation through the ventilation duct
The entrance opening end which is attached to the ventilation air path of the upper side and which is smaller in diameter than the ventilation air path and has a larger amount of protrusion toward the upper side and which is on the upstream side in the ventilation direction , opposes this entrance opening end.
And adjusting cylinder having an outlet opening end on the side, to be capable of hanging the rotation of the passing wind direction at the top of the inlet opening end of the adjustment cylinder, and an adjustment plate having an adjustment window capable of adjusting the opening area in a part Have
Means that allow ventilation from the lower portion, the side portion of the adjustment plate, and the adjustment window to the adjustment tube are employed.

[0015]

[0016]

According to the first aspect of the present invention, the normal substantial opening area of the inlet opening end is reduced by the adjusting plate hanging upstream of the oblique inlet opening end of the adjusting cylinder. And the lower part. When there is wind in the direction of blowing into the adjusting cylinder, the adjusting plate receives the wind and rotates downstream according to the strength, and the actual opening area decreases according to the strength of the wind. Suppress increases in volume.

According to the second aspect of the present invention, the adjusting plate hanging down the upstream side of the diagonal inlet opening end of the adjusting cylinder reduces the normal substantial opening area of the inlet opening end to the side of the adjusting plate. And the lower part. When there is wind in the direction of blowing into the adjusting cylinder, the adjusting plate receives the wind and rotates downstream against the resistance of the elastic force according to the strength, and the actual opening area depends on the strength of the wind Decreases and suppresses the increase in ventilation due to wind blowing.

According to the third aspect of the present invention, the sensitivity of the rotation of the adjustment plate to wind can be adjusted by the rotation adjusting member as a variable resistor, together with the operation of the first or second aspect.

[0019]

According to the fourth aspect of the present invention, the adjusting plate hanging down the upstream side of the oblique inlet opening end of the adjusting cylinder reduces the normal substantial opening area of the inlet opening end to the side of the adjusting plate. And the lower part. When there is wind in the direction of blowing into the adjusting cylinder, the adjusting plate receives the wind and rotates downstream according to the strength, and the actual opening area decreases according to the strength of the wind. Suppress increases in volume. Further, by adjusting the opening area of the adjusting window, it is possible to adjust the size of the normal substantial opening area of the entrance opening end.

[0021]

[0022]

【Example】

Embodiment 1 FIG. FIG. 1 is a side view showing a ventilation control device as one embodiment of the present invention. The ventilation control device is mounted on a part of the ventilation air passage 1 that connects the room and the outside, and adjusts the ventilation amount of the ventilation air passage 1. In this embodiment, the ventilation air passage 1 is formed of a PVC pipe as an air supply ventilation passage for taking in outside air into the room, and a ventilation control device is fitted and attached to an opening end on the indoor side.

As shown in the enlarged cross-sectional view of FIG. 2, the ventilation adjusting device has an upstream side (right side in FIG. 2) with respect to a ventilation direction (right side to left side in FIG. 2) configured as a diagonal opening having a larger projecting amount toward the upper side. And an adjustment opening 4 having an outlet opening end 3 on the downstream side (the left side in FIG. 2). The adjusting cylinder 4 is a cylindrical body (corresponding to the cross-sectional shape of the ventilation air passage 1 and, if the ventilation air passage 1 has a rectangular cross section, a rectangular cylinder). The protruding flange 5 is formed integrally. A front panel 6 is provided in front of the outlet opening end 3 so as to face the outlet opening end 3 at a predetermined interval.
Is concealed by the front panel 6 from the front side.

The inlet opening end 2 of the adjusting cylinder 4 is covered with a sleeve 7 that extends the indoor side of the adjusting cylinder 4 as it is, and has a smaller diameter than the ventilation air passage 1 due to a sudden reduction or a gradual reduction.
Well configured. The open end of the sleeve 7 is located upstream of the inlet open end 2 of the adjusting cylinder 4, and several mounting springs 8 are provided on the outer periphery of the sleeve 7 at intervals in the circumferential direction. The mounting spring 8 applies a spring force in the expanding direction to the inner surface of the ventilation air passage 1, and holds the whole spring in the ventilation air passage 1. An adjusting plate 10 is suspended from the inlet opening end 2 of the adjusting cylinder 4 by bearing structures 9 formed on both sides of an upper portion thereof so that the adjusting plate 4 can freely rotate in the ventilation direction.

The adjusting plate 10 has a plane area substantially equal to the projected plane area of the entrance opening end 2, and is held by the bearing structure 9 at the shaft portions 11 on both sides thereof. Is regulated by abutting against the edge. The adjusting plate 10 is normally hung down, and the entrance opening end 2 is an oblique opening, so that air flows from the lower portion and the side of the adjusting plate 10 to the adjusting cylinder 4. Even if the adjusting plate 10 abuts on the inlet opening end 2, the inlet opening end 2 is not completely closed, and a predetermined opening portion remains on the lower side. In addition, a cushion material 12 is provided at a contact portion of the inlet opening end 2 with the adjustment plate 10.
Are provided, so that the buffering at the time of contact and the occurrence of contact noise are prevented.

The adjusting plate 10 may be a simple flat plate as shown in FIGS. 1, 2 and 3, or may be provided with a bent portion 13 having a lower end bent upstream in an L-shape as shown in FIG. In this case, the weight of the bent portion 13 is attached to the lower portion, so that the stability of the hanging state is increased, and the return to the hanging state is smooth, so that a more functional adjustment plate is obtained.

As shown in FIG. 1, the ventilation control device having the above-mentioned structure is mounted by the mounting spring 8 by pushing the sleeve 7 from the indoor side end of the ventilation air passage 1 into the ventilation air passage 1 so as to be outside the room. Air supply from the ventilation air passage 1 to the room is performed through the ventilation control device. When there is no external wind blowing into the ventilation air passage 1 or when there is only a slight breeze, the adjusting plate 10 is freely moved and does not move. Therefore, outside air flows into the adjusting cylinder 4 from the lower part and both sides of the adjusting plate 10 and is supplied into the room from the outlet opening end 3 of the adjusting cylinder 4.

When there is a relatively strong outside wind blown into the ventilation passage 1, the adjustment plate 10 is pushed by the outside wind in accordance with the strength of the outside wind, and the adjustment plate 10 is turned to the inlet opening end 2 side. Due to this rotation of the adjustment plate 10, the ventilation spaces on both sides of the adjustment plate 10 become narrower according to the amount of rotation. Therefore, the increase in the amount of air supply due to the blowing of the outside wind is limited, and the amount of air supply to the room is kept substantially constant. When the outside wind is strong enough, the adjusting plate 10 comes into contact with the inlet opening end 2 to close the inlet opening end 2,
Since the lower part of the inlet opening end 2 is still open, ventilation from this part to the adjusting cylinder 4 is performed, and air is supplied into the room.

That is, the ventilation control device performs a function as shown in FIG. FIG. 5 shows the air volume / static pressure characteristics. When Q1 in the figure is a required air volume for ventilation, the adjusting plate 10 is in a hanging state and in a low pressure loss state between 0 and Q1. When the air volume reaches Q2, which is slightly higher than Q1, the adjustment plate 10 rotates and the pressure loss increases to P2, and the air volume decreases to Q3. In a region where the air volume is larger than Q1, the adjusting plate 10 is closed, and a high-pressure loss state occurs, and the air volume becomes Q4, which is slightly increased from Q1. Therefore, ventilation with a substantially constant air volume is realized.

The rainwater blown from the ventilation wind path is
It is hard to invade the indoor side by the obstacle of the course by the adjustment plate 10,
Further, since the sleeve 7 causes the inlet opening end 2 to open inward away from the inner periphery of the ventilation air passage 1, the route of entry of rainwater transmitted through the ventilation air passage into the adjustment cylinder 4 is cut off. Never reach the room. The sleeve 7 performs such a rain-proof function, but is essentially a functional part for maintaining ventilation on the side of the inlet opening end 2 of the adjusting cylinder 4.

Embodiment 2 FIG. FIG. 6 is a rear view showing a ventilation control device as another embodiment of the present invention. This ventilation adjusting device is the same as that of the first embodiment except that the adjustment plate 10 of the above-described first embodiment is provided with resistance due to elastic force in the rotation of the adjustment plate 10 to the closing side. Therefore, the same portions as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

In this ventilation adjusting device, a coil spring 14 is provided between the adjusting plate 10 and the inlet opening end 2 of the adjusting cylinder 4 so as to resist rotation of the adjusting plate 10 toward the inlet opening end 2. It has special features. Although the adjusting plate 10 does not receive the spring force of the coil spring 14 in the hanging state, the inlet opening end 2
In the rotation to the side, the spring force of the coil spring 14 is received as resistance. Other configurations are the same as those of the first embodiment.

In this ventilation adjusting device, the adjusting plate 10 rotates against the spring force of the coil spring 14, and the return to the hanging state is performed by the spring force. That is, the operating point for the rotation of the adjustment plate 10 can be changed by setting the spring force of the coil spring 14, and the responsiveness and adaptability that can be adapted to the use environment are enhanced. In addition, at the time of rotation, the wind and the spring force oppose each other and act on the adjustment plate 10, so that there is no fluctuation in the rotation of the adjustment plate 10,
A stable function is obtained. Other functions are the same as those of the first embodiment, and the description thereof will be omitted.

Embodiment 3 FIG. FIG. 7 is a sectional view showing a ventilation control device as another embodiment of the present invention. This ventilation control device is the same as the control plate 1 shown in the first or second embodiment.
0 is provided with a rotation adjusting member 15 as a variable resistor for making the rotation easy or difficult to make the rotation. The other configuration is the same as that of the first or second embodiment. . Therefore, the same portions as those in the first or second embodiment are denoted by the same reference numerals, and the description thereof is omitted.

The ventilation adjusting device is provided with a rotation adjusting member 15 as a variable resistor which can be attached and detached and can be increased and decreased below the adjusting plate 10. The rotation adjusting member 15 is, as shown in FIG. 8, an engaging portion 1 such as a pin formed at a lower portion of the adjusting plate 10.
6 is constituted by several weights 17 which can be engaged and held. By increasing or decreasing the number of the weights 17, the sensitivity of the rotation of the adjusting plate 10 to the wind can be adjusted. That is, if the weight 17 is increased, the adjustment plate 10 becomes difficult to rotate, and if the weight 17 is decreased, the adjustment plate 10 becomes easy to rotate. Therefore, by adjusting the weight 17 according to the application environment, it is possible to avoid the inconvenience of the adjustment plate 10 causing the adjustment operation to be sensitive, and to increase the adaptability to the specificity of the application place. The other configurations and functions are the same as those of the first or second embodiment, and the description thereof will be omitted.

Embodiment 4 FIG. 9 and 10 are a plan view and a sectional view showing an adjusting plate of a ventilation adjusting device as another embodiment of the present invention. This ventilation adjusting device is provided with an adjusting window 18 that can adjust the opening area in a part of the adjusting plate 10 described in the first or second embodiment, and the other configuration is the same as the first or second embodiment. Is the same as Therefore, the same portions as those in the first or second embodiment are denoted by the same reference numerals, and the description thereof is omitted.

In this ventilation control device, an adjustment window 18 is opened in the front of the control plate 10. The adjustment window 18 is provided with an adjustment lid 19 for changing the opening. The adjusting cover 19 is provided with, for example, a pin 20 formed at an edge of the adjusting window 18.
With a configuration having several holes 21 that can fit in the
Adjustment window 1 by changing the hole 21 to be engaged with
8 can be adjusted from closed to fully open. In this ventilation control device, a lower portion, a side portion, and an adjustment window 1 of an adjustment plate 10 are provided.
Ventilation from 8 to the adjustment cylinder 4 is possible. Therefore,
Even if the adjusting plate 10 abuts on the inlet opening end 2, the ventilation according to the degree of opening of the adjusting window 18 is maintained, so that the normal substantial opening area of the inlet opening end 2 can be easily adjusted. In other words, the required ventilation can be adjusted according to the wind environment of the area or the installation place. When the adjustment window 18 is completely closed and used, the same functions as those of the first and second embodiments are performed, and when the adjustment window 18 is opened and used, the ventilation from the adjustment window 18 is better than that of the first and second embodiments. As a result, the air supply amount can be set larger.

[0038]

[0039]

[0040]

Each of the above embodiments is an example of application to the ventilation air passage 1 for air supply by natural ventilation, but it is also possible to apply the invention to a ventilation air passage for exhaust air. In the case of application to a ventilation air path for exhaust air, one side of the adjustment plates 10 and 24 is installed facing the indoor side. Thus, the amount of exhaust air from the ventilation air passage, which fluctuates depending on the temperature difference between the inside and outside of the room and the level of indoor air supply, can be kept substantially constant. That is, in any of the embodiments, the amount of ventilation required for ventilation can be maintained without excess and deficiency, the energy loss due to excessive ventilation can be reduced, and it effectively functions for ventilation of a highly airtight insulated house.

[0042]

As is apparent from the above description of the embodiment, according to the first aspect of the present invention, it is possible to suppress an increase in the amount of ventilation due to the blowing of air from the ventilation air passage, and to prevent the influence of wind and the like. Ventilation at a substantially constant air volume is enabled by a simple configuration.

According to the second aspect of the present invention, ventilation with a substantially constant air volume can be achieved with a simple configuration even when there is an influence of wind or the like, and the adjustment operation is stabilized.

According to the third aspect of the present invention, together with the effect of the first or second aspect of the present invention, it is possible to adjust the rotation sensitivity of the adjustment plate to wind by the rotation adjusting member as a variable resistor. Responsiveness and adaptability to the use environment can be improved.

[0045]

[0046] According to the invention of claim 4, suppresses an increase in ventilation caused by blowing wind to the ventilation air passage, possible by ventilation is a simple structure in substantially even with the influence of wind constant air volume In addition, by adjusting the opening area of the adjustment window, the size of the normal substantial opening area of the entrance opening end can be adjusted, and the adaptability and adaptability to the use environment can be improved.

[0047]

[Brief description of the drawings]

FIG. 1 is a side view showing a ventilation control device according to an embodiment of the present invention in a mounted state.

FIG. 2 is an enlarged vertical sectional side view of the ventilation control device of FIG. 1;

FIG. 3 is a rear view of the ventilation control device of FIG. 1;

FIG. 4 is a side view of a main part showing another mode of the adjusting plate in the embodiment.

FIG. 5 is an explanatory diagram showing functions of the ventilation control device of FIG. 1;

FIG. 6 is a rear view of a ventilation control device showing another embodiment of the present invention.

FIG. 7 is a longitudinal sectional side view of a ventilation control device showing another embodiment of the present invention.

8 is an enlarged perspective view of a portion indicated by an arrow A in FIG. 7;

FIG. 9 is a plan view of an adjusting plate of a ventilation adjusting device according to another embodiment of the present invention.

FIG. 10 is a sectional view of the adjustment plate of FIG. 9;

[Explanation of symbols]

1 ventilation airway, 2 entrance open end, 3 exit open end,
4 adjustment cylinder, 7 sleeve, 10 adjustment plate, 14
Coil spring, 15 rotation adjustment member, 18 adjustment window,
19 Adjustment lid. 2 Inlet open end 3 Outlet open end 4 Adjustment cylinder 7 Sleeve 10 Adjustment plate 14 Coil spring 15 Rotation adjustment member 18 Adjustment window 19 Adjustment lid 22 Inlet opening 23 Outlet opening 24 Adjustment plate 26 Spring 27 Gap

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-57-86668 (JP, A) JP-A-59-123239 (JP, U) JP-B-52-621 (JP, B2) JP-B-51- 48366 (JP, B2) JP 52-26061 (JP, B2) (58) Fields investigated (Int. Cl. ⁶ , DB name) F24F 13/10 F24F 13/14

Claims (4)

(57) [Claims] Claims 1. A device for controlling ventilation by a ventilation air passage which is interposed in a part of a ventilation air passage connecting an indoor room and an outdoor room, wherein the ventilation air passage is attached to the ventilation air passage and has a diameter larger than that of the ventilation air passage. small
An inlet open end on the upstream side information for an airflow direction constituting a large diagonal of the opening of the Sakute upper enough protruding amount this inlet opening
An adjusting cylinder having an outlet opening end on the side opposite to the mouth end, and an adjusting plate suspended above the inlet opening end of the adjusting cylinder so as to freely rotate in the ventilation direction; A ventilation control device having a configuration in which ventilation is performed from a lower portion and a side portion of the control plate to the control cylinder. 2. A device for interposing a part of a ventilation air passage communicating between an indoor room and an outdoor room and adjusting ventilation by the ventilation air passage, wherein the device is mounted on the ventilation air passage and has a diameter larger than that of the ventilation air passage. small
An inlet open end on the upstream side information for an airflow direction constituting a large diagonal of the opening of the Sakute upper enough protruding amount this inlet opening
An adjusting cylinder having an outlet opening end on the side opposite to the mouth end; and an adjusting cylinder having an outlet opening end which is suspended above the inlet opening end so as to be rotatable in the ventilation direction, and is rotated by an elastic force in the downstream direction. A ventilation plate having a resistance-applied adjusting plate, wherein ventilation is performed from a lower portion and side portions of the adjusting plate to the adjusting cylinder. 3. The ventilation adjustment device according to claim 1, wherein the adjustment plate has a rotation resistance as a variable resistor that makes the rotation difficult or easy. A ventilation control device comprising a member. 4. A device that is interposed in a part of a ventilation air passage that communicates between an indoor room and an outdoor room and controls ventilation by the ventilation air passage, and is attached to the ventilation air passage and has a diameter greater than that of the ventilation air passage. small
An inlet open end on the upstream side information for an airflow direction constituting a large diagonal of the opening of the Sakute upper enough protruding amount this inlet opening
An adjusting cylinder having an outlet opening end on the side opposite to the mouth end, and an adjusting window which is suspended above the inlet opening end of the adjusting cylinder so as to be rotatable in the ventilation direction and can partially adjust the opening area. A ventilation control device comprising: an adjustment plate having a lower portion, a side portion, and an adjustment window to allow air to flow through the adjustment tube.